std::vector<std::vector<cv::Point>> fillContour(const std::vector<std::vector<cv::Point>> & _contours) { // sort as x descent y descent. std::vector<std::vector<cv::Point>> contours(_contours); for(size_t i = 0; i&l
为了方便讲解,我们先来创建一个多边形做演示 第一步:创建图像,并绘制一个六边形.代码和生成图像如下: # Create an image r = 100 src = np.zeros((4*r, 4*r), dtype=np.uint8) # Create a sequence of points to make a contour vert = [None]*6 vert[0] = (3*r//2, int(1.34*r)) vert[1] = (1*r, 2*r) vert[2] = (3*
获取地球上两经纬度坐标点间的距离,利用[大圆距离公式] A diagram illustrating great-circle distance (drawn in red) between two points on a sphere, P and Q. Two antipodal points, u and v, are also depicted. 谷歌都在用呢, C#实现的代码如下: /// <summary> /// 地球半径 /// </summary> priva
今天有同学问如何用 JS 正则表达式获取一段文本中的超链接,并对超链接进行处理,想了几分钟,写了下面的代码: var re = /https?:\/\/[\w\.:~\-\d\/]+(?:\?[\w\d\-_&=%]+)?(?:#[^\s]+)?/i; 这个正则表达式处理这种类型的URL: protocol://host:port/path?param=value#xxoo 想法是好的,但总要测试通过才可以,随即又写了一段获取页面内所有带有 src, href 属性的代码: function g
declare @start date,@end date; set @start='2010-01-01'; set @end='2010-02-01'; --获取时间段内日期列表 select [day]=dateadd(day, number - 1, @start) from master.dbo.spt_values where type='P' and number <= datediff(day, @start,@end) + 1 and number>0
运动.cookie.ajax.获取行内样式兼容写法.拖拽封装大合集. //url,data,type,timeout,success,error function ajax(options){ //-1 整理options options=options||{}; options.data=options.data||{}; options.timeout=options.timeout||0; options.type=options.type||'get'; //0 整理data var a
需要做一个功能,显示类内的属性名和对应的值.比如有类 Public Class SupervisedParams Public TestMode As string Public Time As String Public TorquePV As Single Public PrsPV As Single End Class 这里用了公共字段代替属性,因为VB.NET没有自动属性,必须处理get set 实在麻烦. 需要显示:TorquePV =2.3 PrsPV
